Technical information

First-Time Configuration
Manual No. 775029 1-25
Let’s start by selecting a RAID level for our first logical drive.
☞ With the RAID Level definition field selected...
☞ Press the + or - key to find your desired RAID level,
OR
☞ Press Spacebar to display a box of available choices, use the
arrow key to select your desired RAID level, then press Enter
(Figure 1-23).
Figure 1-23. Example of a Selection Box
Next, we’ll select the write caching strategy for our logical drive.
If you are unfamiliar with the terms “Write Through” and “Write Back”
caching, please refer to the Glossary for a detailed definition.
In a nutshell, Write Back caching speeds write performance but risks loss of
data in the cache buffer should power fail. Use Write Back only if you have a
battery backup unit (BBU) or uninterruptable power supply (UPS) installed
to preserve data in the cache.
☞ Use the right arrow key to select the Write Cache definition
field, then...
☞ Press the + or - key to find your desired caching method
(“Thru” for Write Through, “Back” for Write Back),
OR
☞ Press Spacebar to display a box of available choices, use the